Qidan, AA, Morales-Cespedes, M, El-Gorashi, T et al. (1 more author) (2021) Resource Allocation in Laser-based Optical Wireless Cellular Networks. In: Proceedings of 2021 IEEE Global Communications Conference (GLOBECOM). 2021 IEEE Global Communications Conference (GLOBECOM), 07-11 Dec 2021, Madrid, Spain. IEEE . ISBN 978-1-7281-8105-9
Abstract
Optical wireless communication provides data transmission at high speeds which can satisfy the increasing demands for connecting a massive number of devices to the Internet. In this paper, vertical-cavity surface-emitting(VCSEL) lasers are used as transmitters due to their high modulation speed and energy efficiency. However, a high number of VCSEL lasers is required to ensure coverage where each laser source illuminates a confined area. Therefore, multiple users are classified into different sets according to their connectivity. Given this point, a transmission scheme that uses blind interference alignment (BIA) is implemented to manage the interference in the laser-based network. In addition, an optimization problem is formulated to maximize the utility sum rate taking into consideration the classification of the users. To solve this problem, a decentralized algorithm is proposed where the main problem is divided into sub-problems, each can be solved independently avoiding complexity. The results demonstrate the optimality of the decentralized algorithm where a sub-optimal solution is provided. Finally, it is shown that BIA can provide high performance in laser-based networks compared with zero forcing (ZF) transmit precoding scheme.
Metadata
Authors/Creators: |
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Keywords: | Optical Wireless networks; resource allocation and interference management | ||||||||
Dates: |
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Institution: | The University of Leeds | ||||||||
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Institute of Communication & Power Networks (Leeds) | ||||||||
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Depositing User: | Symplectic Publications | ||||||||
Date Deposited: | 26 Sep 2022 10:13 | ||||||||
Last Modified: | 26 Sep 2022 10:13 | ||||||||
Status: | Published | ||||||||
Publisher: | IEEE | ||||||||
Identification Number: | https://doi.org/10.1109/globecom46510.2021.9685357 | ||||||||
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